You've read a lot about 'invisibility' over the last few years. Mathematicians and scientists have been working on various devices that enable invisibility cloaks which shield small objects from detection by microwaves or sound waves.

An international team has devised an amplifier that can boost light, sound or other waves while hiding them inside an invisible container. As a first application, the researchers propose manipulating matter waves, which are the mathematical description of particles in quantum mechanics. The researchers envision building a quantum microscope that could capture quantum waves, the waves of the nano-world. A quantum microscope could, for example, be used to monitor electronic processes on computer chips.

The authors dubbed their system "Schrödinger's hat," referring to the famed Schrödinger's cat in quantum mechanics. The name is also a nod to the ability to create something from what appears to be nothing. A magic rabbit by a stage magician, for example.

"You can isolate and magnify what you want to see, and make the rest invisible," said corresponding author Gunther Uhlmann, a University of Washington mathematics professor. "You can amplify the waves tremendously. And although the wave has been magnified a lot, you still cannot see what is happening inside the container. In some sense you are doing something magical, because it looks like a particle is being created. It's like pulling something out of your hat."

A matter wave hitting Schrödinger's hat. The wave inside the container is magnified. Outside, the waves wrap as if they had never encountered any obstacle. Credit: G. Uhlmann, U. of Washington

Matter waves inside the hat can also be shrunk, though Uhlmann notes that concealing very small objects "is not so interesting."

The team helped develop the original mathematics to formulate cloaks, which must be realized using a class of engineered materials, dubbed metamaterials, that bend waves so that it appears as if there was no object in their path. The international team in 2007 devised wormholes in which waves disappear in one place and pop up somewhere else.

Uhlmann has been working on invisibility with fellow mathematicians Allan Greenleaf at the University of Rochester, Yaroslav Kurylev at University College London in the U.K., and Matti Lassas at the University of Helsinki in Finland. For this paper, they teamed up with co-author Ulf Leonhardt, a physicist at the University of St. Andrews in Scotland and author on one of the first papers on invisibility. Recent progress suggests that a Schrodinger's hat could, in fact, be built for some types of waves.

"From the experimental point of view, I think the most exciting thing is how easy it seems to be to build materials for acoustic cloaking," Uhlmann said. Wavelengths for microwave, sound and quantum matter waves are longer than light or electromagnetic waves, making it easier to build the materials to cloak objects from observation using these phenomena. "We hope that it's feasible, but in science you don't know until you do it." Now that the paper is published, they hope to find collaborators to build a prototype.

Comments

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*******Hello Again Scott R. Anderson, Ph.D.
**********Thanks for your response.
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You say: "NASA did go to the Moon, several times."(?)
I say: How do 'you''personally''know''this' for a FACT?
What one PROOF convinced you?
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Nothing that NASA has offered or stated, amounts to PROOF! of any "Landing on the Moon"!
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And: there is NOTHING 'at the sites' you've offered that would convince a ''reasonable"
person that anyone 'ever' traveled 238,000 miles to "Walk on the Moon"!
Most sensible, rational, reasonable people cognizant of the many critical complex factors that would
confront an effort of this more than 'herculean''magnitude', would insist on ABSOLUTE PROOF
of its occurrence; before propagating what otherwise amounted to a SCAM; lest they be thought
a part of, party to, or, cohort of the perpetrators of the 'HOAX'!
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I would prefer if you would state briefly WHY 'YOU PERSONALLY BELIEVE':
NASA landed "Men on the Moon!"
No more "Sites"! That amounts to, "hearsay", unacceptable as factual proof!
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The only information available concerning 'this' is what NASA has offered that includes TV Videos,
some "Rocks", that could come from anyplace, and a lot of diatribe that cannot be called PROOF!
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Please be aware 'your''progeny' SHALL KNOW THE TRUTH! And,'they' may be more than embarrassed
that an otherwise exceptionally talented Doctor of Philosophy, was either 'taken-in' and made a 'patsy' of;
or, was 'cowed' by the "Powers That Be" into going along with what amounts to one of the greatest lies,
and hoaxes ever perpetrated upon a mind-controlled Humanity!
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********** Jocta
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PS: It is no secret that most American Scientists and Engineers are reliant upon our Government
for their income from NASA or, through the Educational Institutions they are affiliated with; so
we are unable to 'count on them' for verification of a Government fraud or, hoax, because such
honesty would certainly cause some actions against them that might render them jobless!
For 'them' its a "bread & butter" Issue!
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It's pretty obvious that YOU are the problem, since you come on to a site with even fewer credentials that those you allege for others. It is obvious that your ramblings are the result of a random word generator and unless you offer bonafide proof that you are actually a real human being and not merely a spambot, future posts of yours will simply be deleted.

Fortunately spambots as dumb as this are much simpler to discover.

BTW, if you were anything except a stupid computer program, you'd recognize the fundamental flaw in your argument.

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Hello Mr. Gerhard;'
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Obviously my "credentials'" are far superior to one so negative it appears to be part of the make-up of a devout sadist.
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You look like one of those toady robotic slaves who accepts everything on faith; who probably 'doesn't believe' the World Trade Center was a Government Sponsored "Inside Job?
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But, no doubt? you 'do' believe NASA's LIE, that they "Landed Men on the Moon", despite the the impossibility of humans surviving the 'Death Barrier' Solar Flare Temperatures of 270,000 degrees Fahrenheit?
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Thanks for the "Welcome Back"!
-Cheers, Jim
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Once these people understand that the Earth is flat and that all these "images" of the "earth" are doctored fakes done by NASA to propogate the lies of the corporate west the better! Sure scientists can magically "prove" it's an oblate spheroid when they're asked to! They just push anyone who doesn't believe off the edge!

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Are you related to Gerhard?
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Do you know there were NO PILOTS, NOR PASSENGERS, on the four "Aircraft" involved in the "9/11" MURDEROUS
'HOAX'?
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And--- I would prefer if you would state briefly 'WHAT 'PROOF' convinced YOU PERSONALLY that NASA "landed men on the MOON?"
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Cheers, J